. >>> it's been almost 40 years since jimmy hoffa went missing. the fbi is heading to eastern michigan on a tip that his body could be buried in the backyard there. a man succeays he saw other many a body just hours after hoffa went missing in 1975. he was seen meeting with two suspected mafia members. police say they are taking this tip seriously but do not expect to actually find hoffa's body. >> we believe he's credible enough that he believes what he saw, that something took place that day out of the ordinary. we do not believe it's jimmy hoffa. we are not making that assumption. the timeline doesn't exactly add up to be mr. hoffa. >> there are many conspiracy theories on where hoffa is actually buries. some rumors include him being underneath giants stadium in new jersey or even on the grounds of the white house. >>> this morning we're getting video of a dramatic explosion in washington state. a truck burst into flames while it was laying down adhesive for lane markers. it was carrying a large propane tank. flames shoot out of all side of the